. >>> today pope benedict xvi pleased thousands of pilgrims from his window at st. peter's square. >> cbs reporter samey johnson explain why some think the pope should not participate. >> reporter: there is much debate on who will replace pope benedict xvi, stepping down due to health. the papal's conclave is a closed-door conference. among the 100-plus cardinals to attend, cardinal mahoney. cath likes united, with 50,000 members, make up the national group with 1,600 here in los angeles. they oppose cardinal mahoney taking part in the conclave given the church sexual abuse scandal. >> it is unbelievable that he would go there. i think it is just wrong. >> reporter: catholics united started a petition asking cardinal mahoney to recluse himself from the conclave. but not all catholics agree that the cardinal should it is out of the conclave. >> he is still part of the growing catholic church, so, i believe he should be involved. >> reporter: yet others like louise brown are not sure. alities we are need in of forward thinking cardinals, but he is really has disappoin